Container and means for emptying it



Sept. 8, 1925.

G. ZIMMERMANN CONTAINER AND MEANS FOR EMPTYING IT 2 Sheets-Sheet I Filed March 18, 1925 Sept. 8. 1925.

1,552,905 G. ZIMMERMANN CONTAINER AND MEANS FOR EMPTYING IT Filed March 18, 1925 2 Sheets-Sheet 2 juucufo'i;

Fill

Patented Sept. 8, 1925.

UNITED S ATES cnono ZIEMERMANN, or LEVERKUSEN, NEAR COLOGNE, GERMANY, nssrenon 'ro FABBENFAIBBIKEN VOBIMI. FRIEDR. I BAYER AND CO.,

COLOGNE-ON-THE-RHINE, GERMANY.

F LEVERKUSEN, NEAR CONTAINER AND MES FIt EM PTYING 1'1.

Application filed March 118, 1925. Fierial No. 16,584l.

To all whom, it may concern:

Be it known that l, Gnonc ZIMMERMANN, a citizen of Germany, residin at Leverkusen, near Cologne, State of Trussia, Germany, have invented new and useful lmprovements in Containers and Means for Emptying Them, of which the following is a specification.

This invention relates to containers and means for emptying them.

\Vhen containers are filled with products in dust form, they are dilficult to empty owing to the coherence of the dust particles.

According to this invention they are emptied by the aid of a rotary jet of air directed towards the walls of the container.

According to one feature of this invention, a container adapted to be closed airtight has in it a vertical rotatable pipe extending the height of the container or substantially so, and provided with an outlet where the outcoming dust can be acted upon by a jet of air.

According to another feature of the invention, the container is made to withstand a considerable pressure, while a rotatable member extends into the container a short distance only, the delivery of the dust to a distance being elfected by the pressure within the container.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a schematic view of a container in accordance with this invention, and Fi re 2 is a diagrammatic View showing t e relative arrangement of the air pipe, nozzles and the container as they would appear at the line 2-2, Figure 1. Figure 3 is a schematic view of a modified construction.

Referring to Figures 1 and 2, 2 is a container adapted to be closed airtight and having in it a pipe 1, provided with tangential nozzles 11. The bottom wall of the container 2 is provided with an outlet which is spanned by a step bearing 3, the latter being provided with apertures for the passage of dust. The pipe-1 is closed at its lower end by a plug 17 mounted in the bearing 3, and the upper end of the pipe is supported in a bearing 4, which latter is made air-tight by a gland 7. The pipe 1 may be rotated by the bevel gearing 5 which is driven by the chain wheel 6, and air is supplied to the pipe 1 from a suitable source of pressure through the union 8. An open topped dust receiver 13 is positioned in direct communication with the outlet opening of the container 2, the dust receiver being provided with a discharge pipe 14 leading from one wall thereof. A compressed air pipe 15 projects into the dust receiver and in horizontal alignment with the discharge pipe l lwith which it cooperates to form an ejector. The lower end of pipe 1 is provided with stirrers 16 immediately above the bearing 3, which stirrers prevent large particles from obstructing the outlet.

WM container 2 is being filled with cohering dust, a tree passage to the dust receiver 13 is maintained by leading air into to pipe 1 and roting it.

When it is full of dust, and it is desired to empty the container, the diameter of the clear passage through the container to the dust receiver 13 is enlarged by the air pressing out of the rotatin nozzles ll, the dust becomes mixed with t he whirling air and passes out of the container into the dust re- "ceiver 13, where it is acted on by air pass out of pipe 15 and is delivered through pipe 14. 7

Referring to Figure 3, the container 2 is of a shape and construction to withstand air pressure 01 is a rotary pipe supplied with air under pressure which issues from the tangential nozzle Z. In this construction pipe d extends a short distance only in the receiver, the projection of the dust through pipe j being caused by the pressure in the receiver which may, for example, rise tothree, atmospheres. The cook 18 preventing outlet of air from the bottom of the container is preferably situated as near as possible thereto in order that the container may be brought to the required pressure as quick- 1y as possible at the commencement of the emptymg operation.

I claim 1. The combination with a container having a discharge opening, of apparatus for loosing material within said container, said apparatus comprising a pipe positioned in axial ali cut with said opening, transversely irected nozzles on said pipe and means for rotating said pipe about its axis.

2. The combination with a container adapted to hold material in the form of cohering dust, of apparatus for loosing the ms.-

'- terial contained therein for the purpose of permitting its removal from said container, said apparatus including means for producing a jet ofair in a plane above and substantially parallel to the plane of the discharge opening of said container, and means for rotating jet-producing means to traverse said "let of air over said discharge opening.

3. he combination with a container having an outlet at the bottom thereof and adapted to be closed airtight, of a vertically disposed rotatable pipe extending longitudinall of said container, said pipe being provi ed with tan ential outlets and having a closed lower end, and means for delivering compressed air to said pipe.

4. The combination with a container adapted to hold material in the form of cohering dust and having an outlet opening in the bottom thereof, of an open topped dust chamber in direct communication with the outlet 0 ening of said container, a vertically dis ose pipe in axial ali ment with said Y gn out at opening, means for rotating said pipe about its axis, means for delivering laterally directed streams of compressed air from said rotatable pipe, and a pipe in said dust chamber for delivering compressed air thereto, said pipe cooperating with said outlet opening to form an ejector operative to remove dust from said dust chamber.

5. The combination with a dust chamber adapted to withstand considerable pressure and having a discharge 0 ening at the bottom thereof, of a rotata le pipe in axial alignment with said opening, said pipe having a transversely irected nozzle positioned above and adjacent to said opening.

In testimony whereof I have hereunto set my hand.

.GEORG ZIMMERMANN. 

